Question

Which of the following is not the electronic configuration of a representative element?

• A. $n{s}^2$
• B. $n{s}^{2}n{p}^5$
• C. $n{s}^{2}n{p}^1$
• D. $n{s}^{2}n{p}^6$

Answer 1

Answer: (D)

$n{s}^{2}n{p}^6$

$s$ and $p$ block elements, except noble gases are known as representative elements. Representative elements have the general electronic configuration $n{s}^{1-2}n{p}^{0-5}$.

Option $D$ represents noble gases and does not satisfy the general configuration of representative elements.